Optimal placement of wind turbine to minimize voltage variance in distributed grid considering harmonic distortion

Abstract

This paper suggested an algorithm to choose the optimal location of wind turbines (WT) in a distribution grid. The optimal position is calculated so that the maximal voltage variance in the distribution grid is minimized. This paper considers the harmonic current emitted by WT and the limitation of total harmonic distortion of voltage waves at nodes in the distribution grid. This proposed approach is written in MATLAB software and validated through a sample distribution grid, IEEE 33-bus. The verifying results demonstrated that by applying the suggested algorithm, the maximal voltage variance due to the variation of the power output of WT is minimized, the total harmonic distortion value at all buses remains within the operating range, and the electrical loss in the grid is reduced. Moreover, by considering the limitation of total harmonic distortion, the number of WT allowed to be installed in the grid is able to limited.